<!--
 * Tencent is pleased to support the open source community by making BK-JOB生物智算平台 available.
 *
 * Copyright (C) 2021 THL A29 Limited, a Tencent company.  All rights reserved.
 *
 * BK-JOB生物智算平台 is licensed under the MIT License.
 *
 * License for BK-JOB生物智算平台:
 *
 *
 * Terms of the MIT License:
 * ---------------------------------------------------
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
 * documentation files (the "Software"), to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and
 * to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of
 * the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
 * THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
-->

<template>
  <div ref="jbInput" class="jb-input">
    <bk-input ref="input" :value="localValue" v-bind="$attrs" @focus="handleFocus" @blur="handleBlur"
      @input="handleInput" @keyup="handleKeyup" />
    <span v-if="maxlength > 0" ref="number" class="values-number">
      {{ inputLength }}/{{ maxlength }}
    </span>
  </div>
</template>
<script>
export default {
  name: '',
  model: {
    prop: 'value',
    event: 'input',
  },
  props: {
    value: {
      type: [String, Number],
      default: '',
    },
    maxlength: {
      type: Number,
      default: 0,
    },
    enterTrigger: {
      type: Boolean,
      default: false,
    },
  },
  data() {
    return {
      inputLength: 0,
      localValue: '',
    };
  },
  watch: {
    value: {
      handler(value) {
        this.localValue = value;
        this.inputLength = value.length;
      },
      immediate: true,
    },
    inputLength() {
      this.init();
    },
  },
  mounted() {
    this.timer = '';
    this.inputHander = this.$refs.jbInput.querySelector('.bk-form-input');
    this.init();
  },
  methods: {
    init() {
      if (!this.$refs.number || this.maxlength < 1) {
        return;
      }
      this.$nextTick(() => {
        const numberText = this.$refs.number.outerText;
        this.inputHander.style.paddingRight = `${numberText.length - 1}em`;
      });
    },
    handleFocus() {
      setTimeout(() => {
        console.log()
        this.$emit('on-focus', this.inputHander.value);
      });
    },
    handleBlur() {
      setTimeout(() => {
        this.$refs.input && this.$refs.input.setCurValue(this.localValue);

        this.$emit('on-blur', this.inputHander.value);
      });
    },
    handleKeyup(value, event) {
      if (event.isComposing || !this.enterTrigger) {
        // 跳过输入法复合事件
        return;
      }
      // 输入框的值被清空直接触发搜索
      // enter键开始搜索
      if ((value === '' && value !== this.value)
        || event.keyCode === 13) {
        setTimeout(() => {
          this.$emit('submit', this.inputHander.value);
        });
      }
    },
    handleInput(str) {
      let value = str.trim();
      if (this.maxlength > 0 && value.length > this.maxlength) {
        value = value.slice(0, this.maxlength);
        this.$nextTick(() => {
          this.inputHander.value = value;
          this.$refs.input.setCurValue(value);
        });
      }
      this.inputLength = value.length;
      this.localValue = value;
      this.$emit('input', value);
      this.$emit('change', value);
    },
  },
};
</script>
<style lang='postcss'>
.jb-input {
  position: relative;

  .values-number {
    position: absolute;
    top: 9px;
    right: 9px;
    font-size: 12px;
    line-height: 1em;
    color: #979ba5;
  }
}
</style>
